Radiator cap



Jan. 7, 1930. H, F FISHE 1 1,742,700

RADIATOR CAP Filed Oct. 4. 1928 use Patented Jan. 7, 1930 HENRY F.FISHER, OF LOS ANGELES, CALIFORNIA.

' RADIATOR, CAP

' Application filed October 4, 1928. Serial No. 310,303.

'10 conventional form of radiator which will have a hinged closuretherein and a spring associated with the closure so that the clo-' suremay be forced downwardly within the cap but will be urged into itsnormalclosed 15 position. v

lVith the foregoing and other objects in view whichwill be made manifestint-he following detailed description and specifically pointed out inthe appended claims, reference 23 is had to the accompanying drawings,wherein Fig. 1 is a partial perspective of an automobile to which theimproved radiator cap has been applied. 25 Fig. 2 is a top plan view ofthe improved radiator cap. 1 Fig. 3 is a vertical section taken throughthe radiator cap substantially on. the line 33 of Figure 2.

Fig. 4 is a bottom plan view of the radiator cap.

Fig. 5 illustrates a portion of the radiator and improved radiator capin section, the 010- sure being held in open position during theadministration of water to said radiator.

Referring to the accompanying drawings wherein similar referencecharacters designate similar parts throughout, the improved radiator capconsists of a cap body having a reduced bottom portion 11 which isinternally threaded as at 12 to receive the nipple 13 of an automobileradiator.

An aperture 14 is formed centrally of the top 15 of the caplO and aflange 16v is formed integral with the top 15 and extends into theaperture 14. A closureplate 17 is adapted to fit within the aperture 14and is provided with a flange 18 adapted to co-operate with the flange16 to limit the upper movement of the closure plate.

In the preferred form of construction, a pair of lugs 19 and 20areformed integral with the cap 10 upon the interior thereof. Upon theunderside of the closure 17, an arm 21 is secured and in the preferredform of construction, the arm 21 is formed integral with the closureplate 17. This arm 21 is provided with a pair of lugs 22 and 23 adaptedto be disposed between the lugs 19 and 20 and to have a pintle 24 extendtherethrough so that the closure plate 17 may be hingedly connected tothe interior of the cap 10.

A, coil spring 25 is disposed about the pintle 24 between the lugs 22and 23 and serves to bear against the arm 21 urging the closure plate 17-into its uppermost position. "As clearly shown in Figure 3, the topsurface of the closure plate 17 is flush with the top 15 of the cap 10.Also the under surface of the closure plate 17 is flush with theinterior of 71) the cap 10. In the preferred form of construction, thetop surface of the closure plate 17 and the peripheral surface of thecap 10 are both knurled or milled as shown in Figures 2 and 3.

'With reference to Figure 5, it is seen that to admit water to theradiator R it is merely necessary to thrust the spout of the faucet Fagainst the closure which. will be forced downwardly while water isbeing admitted. Upon the withdrawal of the faucet F the closure willautomatically assume its original normal position preventing water frombeing splashed out of the radiator, cap from. the radiator R. J p

The advantagesof this improved radiator cap are believed to. beself-evident. Itis no longer necessary to unscrew the cap which may bevery hot or may be stuck upon the nipple 13, before water can beadmitted to the radiator B. Other advantages of the device arise fromthe fact that the hinge connection between the closure and the cap 10 ishidden orprotected by the inwardly extending flange 15. In this manneron the insertion of the faucet F it will be readily understood that thefaucet cannot strike or catch upon the closure plate 17 and damage thehinge or tear the hinge apart. Furthermore, as the closure plate swingsinwardly, it can- 100 not. be struck so as to break the hinge as inthecase of closure caps which swmg upwardly. i

It is to be understood thatuvarious changes in the details ofconstruction may be made without departing from the spirit or scope ofthe invention as defined by the appended claims.

I claim:

1. A radiator cap comprising abody hav ing a cylindrical portion and aninwardly extending top flange at the top thereof defining an aperture inthe top of the cap, a closure for the aperture, said closure havinganarm on the under side thereof which is pivotally connectedto the bodyso as to swing "downwardly, the pivotal connection being located beneaththe top flangevbetween the edge of the aperture and the side of the bodyso as to be protected by the top flange, means for limiting the upwardmovement of the closure, and spring means for urging the closure intoits uppermost position.

2. A radiator cap comprising a body having a cylindrical portion and aninwardly extending top flange at the top thereof defining an aperture inthe top of the cap, a closure for the aperture, said closure having anarm on the under side thereof which isv pivotally connected to the bodyso as to swing downwardly, the pivotal connection being located beneaththe top flange between the edge of the aperture and the side of the bodyso as to be protected by the top flange, means for limiting the upwardmovement of the clo sure, and spring means for urging the closure intoits uppermost position, said closure being so constructed and soarranged that it will be flush with the top of the cap when inits-closed position.

' In testimony whereof I have signed my name to this specification. I

' HENRY F. FISHER.

